[iagno] Add a valign=center.

[Arnaud B. <arnaudb src gnome org>]

commit 0c32a2c38a44b43bee0c73c5b0882d7b86bd6b80
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Mon Feb 4 18:10:30 2019 +0100

    Add a valign=center.

 data/ui/iagno.ui | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/data/ui/iagno.ui b/data/ui/iagno.ui
index eba6aa4..a152a5d 100644
--- a/data/ui/iagno.ui
+++ b/data/ui/iagno.ui
@@ -61,18 +61,19 @@
         <child>
           <object class="GtkMenuButton" id="info_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
+            <property name="valign">center</property>
+            <property name="can-focus">True</property>
             <property name="menu-model">primary-menu</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="icon_name">open-menu-symbolic</property>
-                <property name="icon_size">1</property>
+                <property name="icon-name">open-menu-symbolic</property>
+                <property name="icon-size">1</property>
               </object>
             </child>
           </object>
           <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
             <property name="position">1</property>
           </packing>
         </child>